I’m thinking Clint makes a ton of sense. As much as a lot of FRepers would like a conservative stalwart, it wouldn’t help sway undecided voters to Romney. So is the goal to fire up the base, or make Romney/Ryan more palitable to undecided voters? I think the latter. And everybody loves Clint.
A mealy-mouth moderate would cool off the base and probably not sway many undecided voters. What we need are, in Ronald Reagan's words, bold colors, not pale pastels.
As to "everybody loves Clint," I loved him for "Dirty Harry," but his more recent "A Perfect World," a liberal film that was badly written and poorly made, almost made me quit going to movies.